1. As absolutely little as possible. 2. Got FU money and was able to do nothing.
How long have you been doing "nothing"? I tried it (sort of) for a year, and found it a little dull.
I had this big list of all the things I wanted to do when I stopped working, and in six months, I didn't even start doing one of them. My girlfriend said, "You're still on the computer all day, you might as well get paid for it".
I hate it when my girlfriend is right.